[Novalug] need grep help
dc.loco at gmail.com
Fri Mar 16 16:06:13 EDT 2012
On Fri, Mar 16, 2012 at 16:12, James Ewing Cottrell 3rd <
JECottrell3 at comcast.net> wrote:
> Cleverness Kudos for combining the two RE's into one, but Performance
> Dings for not keeping them separare.
> For all comments, the ".*" part will have to be scanned unnecessarily.
Woopsie... Now you've got me wondering what made me add it.
> I still say that '^$|[ \t]#' is better, and more clear.
Only a programmer would find \t clearer than :space: ;-)
Besides...what happens when you want to add other types of comments? Bind
> files use ';'. C++ and others use '//'.
That thought has occurred, but 99% of my use case has been config files
that use # where the ratio of real commments and deactivated options to
active lines is about 500 to 1, and python code. Well, maybe 85%, as see
main need has been filtering those config files that are really
documentation with a few live examples in them.
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